Andreas Halvorsen's ALT Position Overview
Andreas Halvorsen (via Viking Global Investors Lp) currently holds 6.7 M shares of Altimmune, Inc. (ALT) worth $20.37 M, representing 0.06% of the portfolio. First purchased in 2026-Q2, this recently established position has been held for 1 quarters.
Based on recent 13F filings, Andreas Halvorsen has initiated a new position in ALT, representing a fresh investment thesis on this company. Insufficient history to summarize additions or reductions.
Analysis based on 13F filings available since 2013 Q2
Andreas Halvorsen's Altimmune (ALT) Holding Value Over Time
Track share changes against reported price movement
Quarterly Altimmune (ALT) Trades by Andreas Halvorsen
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2026 | +6.7 M | New Buy | 6.7 M | $3.04 |
Andreas Halvorsen's Altimmune Investment FAQs
Andreas Halvorsen first purchased Altimmune, Inc. (ALT) in Q2 2026, acquiring 6,700,000 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Andreas Halvorsen has held Altimmune, Inc. (ALT) for 1 quarters since Q2 2026.
Andreas Halvorsen's largest addition to Altimmune, Inc. (ALT) was in Q2 2026, adding 6,700,000 shares worth $20.37 M.
According to the latest 13F filing for Q2 2026, Andreas Halvorsen's firm, Viking Global Investors Lp, owns 6,700,000 shares of Altimmune, Inc. (ALT), valued at approximately $20.37 M.
As of the Q2 2026 filing, Altimmune, Inc. (ALT) represents approximately 0.06% of Andreas Halvorsen's publicly disclosed stock portfolio, making it one of their key holdings.
Andreas Halvorsen's peak holding in Altimmune, Inc. (ALT) was 6,700,000 shares, as reported at the end of Q2 2026.